Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+metaeval--implicatures/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

metaeval--implicatures/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5a950bb60aa7a20f742eb0b893c73738ec69ccf6680f6dfffcc5dff50f875a6e
+size 1060864